Our customers tell the story about the trans tune better than we can. Below is a write-up of the ECODIESEL trans one the WK2.

Eco Mode - actually fits its name now, the fuel mileage goes up before your eyes. Always starts in 2nd and though it’s tuned for economy the shifts are much smoother with less hesitation than stock.

Normal Mode - feels similar to the stock sport mode shift map. Power is there when you need it, shifts are crisper and the fuel mileage is the same or better than the stock eco mode map. I use this mode most often.

Sport mode - holy balls! The truck squats, shits and gits ???? it’s like doing a hole shot! Lmao it woke the truck up so much it’s insane. The turbo whistle is louder in this map (keep in mind I have other modifications) and the torque is instant. Shifts are so fast you don’t even realize they happened and the majority of differences are noted at slower speeds. (I.e. if you peg it at 75-80 you don’t see much of a difference). If you’re around 30% (estimate) throttle at those speeds the truck takes off and scoots. This mode is jumpy in stop and go traffic mostly because you catch it in between shifts at super slow speeds. Doesn’t happen often but every once in awhile you’ll catch it in the middle of shifting and the truck will buck.

Pros:
Everything is much crisper and smoother, the truck is WAY more responsive, definitely quicker in all regards, and fuel economy is drastically improved in all modes. Compliments the GDE tune perfectly! The device you get also doubles as a code reader and diagnostic tool which is pretty sweet also.